DZone
SEPTEMBER 18, 2019
There are many types of software testing that you can use to improve your products. How Much of a Company's Budget Is Spent on Quality Assurance and Testing? A whopping 39% globally this year. That means software testing spending is up 13% from 2017. More and more companies are realizing that it’s not enough to build good software, it needs to be rigorously examined, benchmarked, and verified.
The Netflix TechBlog
SEPTEMBER 10, 2019
Toby Mao , Sri Sri Perangur , Colin McFarland Another day, another custom script to analyze an A/B test. Maybe you’ve done this before and have an old script lying around. If it’s new, it’s probably going to take some time to set up, right? Not at Netflix. ABlaze: The standard view of analyses in the XP UI Suppose you’re running a new video encoding test and theorize that the two new encodes should reduce play delay, a metric describing how long it takes for a video to play after you press the s
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Rigor
SEPTEMBER 11, 2019
Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. We at Rigor respect many web performance leaders around the world.
KeyCDN
SEPTEMBER 12, 2019
When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. We normally focus solely on the performance aspect, but today we want to dive into additional ways you can optimize images for the web. The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better.
CSS - Tricks
SEPTEMBER 16, 2019
Scott Jehl has written this wonderful piece about how 5G is on the horizon and how it could cause problems for users. But first, he starts by talking about the overwhelming positive news about it: [.] as it matures 5G is predicted to improve network speeds dramatically. Carriers are predicting download speeds in 2019 for anywhere from 100Mb to 1 Gbit per second on average.
Scalegrid
SEPTEMBER 16, 2019
PostgreSQL graphical user interface (GUI) tools help these open source database users to manage, manipulate, and visualize their data. In this post, we discuss the top 5 GUI tools for administering your PostgreSQL deployments. PostgreSQL is the fourth most popular database management system in the world, and heavily used in all sizes of applications from small to large.
DZone
SEPTEMBER 5, 2019
So, why should they hire you? Over the past decade, DevOps has emerged as a new tech culture and career that marries the rapid iteration desired by software development with the rock-solid stability of the infrastructure operations team. For system administrators, operations engineers, and others with strong systems and software backgrounds, there’s perhaps no better time than the present to transition into DevOps.
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
The Netflix TechBlog
SEPTEMBER 23, 2019
Niosha Behnam | Demand Engineering @ Netflix At Netflix we prioritize innovation and velocity in pursuit of the best experience for our 150+ million global customers. This means that our microservices constantly evolve and change, but what doesn’t change is our responsibility to provide a highly available service that delivers 100+ million hours of daily streaming to our subscribers.
Simform
SEPTEMBER 18, 2019
How do you build Scalable Web Apps that users not only love but come over & over again? We’ve pulled together tips from 25+ experts all over the web so that you can make sure they’re using the best of Web Scalability tips without failure. Here's what some of them had to say. The post 25 Experts Share Their Tips for building Scalable Web Application appeared first on Insights on Latest Software Technologies - Simform Blog.
SQL Performance
SEPTEMBER 25, 2019
Introduction. Performance spools are lazy spools added by the optimizer to reduce the estimated cost of the inner side of nested loops joins. They come in three varieties: Lazy Table Spool , Lazy Index Spool , and Lazy Row Count Spool. An example plan shape showing a lazy table performance spool is below: The questions I set out to answer in this article are why, how, and when the query optimizer introduces each type of performance spool.
SQL Server According to Bob
SEPTEMBER 9, 2019
Previous posts have discussed partitioning, for example, a partitioned memory object [link] and how a latch maintains the desired access (exclusive, shared, …) [link]. Quick Refresher Over Partitioned Protection/Locking. Acquiring shared access requires only the local partition be acquired (lightweight scalability). Acquiring exclusive access requires all partitions be acquired (heavier and can be slower).
DZone
SEPTEMBER 4, 2019
An example of a Data Grid. It is hard to imagine a modern web app that does not involve a data grid component to display and filter the data. In this article, we compare the performance of some of the most popular JavaScript grid components on the market, measuring both the initial render time and the scrolling performance. We also describe the methodology used and there is a GitHub repo where you can see the code used.
Dynatrace
SEPTEMBER 30, 2019
Dynatrace news. Cloud platforms are somewhat a staple component to enterprises’ IT environments today, helping to achieve objectives and drive better business operations, but more often than not we don’t see the outcomes or rewards reaped from the use of such platforms. Red Hat OpenShift has demonstrated this in the last year. In November 2018, millions of residents in Southern California turned to their computers and devices to learn as much as possible about the encroaching Woolsey
The Polyglot Developer
SEPTEMBER 20, 2019
About a year ago, I joined HERE Technologies as the Lead Developer Evangelist after having been at Couchbase prior. I wrote about this transition in an article titled, Moving from Couchbase to HERE, the Adventure Continues. In the year that I’ve been at HERE, I accomplished quite a lot in Developer Relations. Some of those accomplishments include: Starting the HERE stream on Twitch.
Simform
SEPTEMBER 24, 2019
From time and again, I've worked with several Fortune 5000 startups. The most common problem that we've dealt with is microservices testing. While transitioning to a microservices architecture, I've observed teams running into issues where they haven't planned out which testing strategies they want to use. This is especially true for a team that is brand new to microservices.
SQL Performance
SEPTEMBER 12, 2019
This article is the fifth part in a series about T-SQL bugs, pitfalls and best practices. Previously I covered determinism , subqueries , joins and windowing. This month I cover pivoting and unpivoting. Thanks Erland Sommarskog, Aaron Bertrand, Alejandro Mesa, Umachandar Jayachandran (UC), Fabiano Neves Amorim, Milos Radivojevic, Simon Sabin, Adam Machanic, Thomas Grohser, Chan Ming Man and Paul White for sharing your suggestions!
TechBeacon Testing
SEPTEMBER 12, 2019
Many development teams won't attempt to create features and automate the tests for those features within the same sprint, since these two development activities together can easily take up the entire two-week sprint.
DZone
SEPTEMBER 23, 2019
It is possible to improve the performance of application servers using Servlet 3.0 async, but is it necessary? Before We Start. Spring makes it easy to write Java applications. With Spring Boot, it became even easier. Spring Boot allows us to quickly create Spring applications: build and run a Java application server with embedded Tomcat and your own controller in less than 5 minutes.
Dynatrace
SEPTEMBER 12, 2019
Dynatrace news. I’m going to revisit the Dynatrace digital transformation in this blog, because it is also an excellent story that began our journey to Autonomous Cloud Management (ACM). ACM is the culmination of our best practices and learning that we share every day with our customers to help them automate their enterprise, innovate faster, and deliver better business ROI.
Smashing Magazine
SEPTEMBER 3, 2019
Automating Website Deployments Through Buddy. Automating Website Deployments Through Buddy. Leonardo Losoviz. 2019-09-03T12:30:00+02:00. 2019-09-03T11:35:16+00:00. (This is a sponsored article.) Managing the deployment of a website used to be easy: It simply involved uploading files to the server through FTP and you were pretty much done. But those days are gone: Websites have gotten very complex, involving many tools and technologies in their stacks.
Sutter's Mill
SEPTEMBER 26, 2019
My CppCon 2019 talk is now available on YouTube, and the slides will soon be available here. I hope you enjoy it.
SQL Performance
SEPTEMBER 5, 2019
I briefly mentioned that batch mode data is normalized in my last article Batch Mode Bitmaps in SQL Server. All data in a batch is represented by an eight-byte value in this particular normalized format, regardless of the underlying data type. That statement no doubt raises some questions, not least about how data with a length much greater than eight bytes can possibly be stored that way.
Randon ASCII
SEPTEMBER 8, 2019
I work quickly on my computer and I get frustrated when I am forced to wait on an operation that should be fast. A persistent nuisance on my over-powered home laptop is that closing windows on the taskbar is slow. I right-click on an entry, wait for the menu to appear, and then select “Close window”. The mouse movement should be the slow part of this but instead I find that the delay before the menu appears is the longest component.
DZone
SEPTEMBER 30, 2019
Vegetables won't keep your app healthy. Ever wanted to see the precise HTTP traffic going through your Spring Boot API? With the Spring Boot Actuator and some code, you can! Spring Boot Actuator manages and monitors the health of your app using HTTP endpoints. It also allows you to see everything that’s happening in the background of an OpenID Connect (OIDC) flow.
Dynatrace
SEPTEMBER 9, 2019
Dynatrace news. I love data. I have spent virtually my entire career looking at data. Synthetic data, network data, system data, and the list goes on. In recent years, the amount of data we analyze has exploded as we look at the data collected by Real User Monitoring (RUM), meaning every session, every action, in every region and so on. As much as I love data, data is cold, it lacks emotion.
Smashing Magazine
SEPTEMBER 5, 2019
Inspired Design Decisions: Alexey Brodovitch. Inspired Design Decisions: Alexey Brodovitch. Andrew Clarke. 2019-09-05T13:30:59+02:00. 2019-09-05T13:30:34+00:00. Before writing Art Direction for the Web , I began to study Alexey Brodovitch when I became fascinated by editorial and magazine design. I was drawn to his precision, in particular, the way Brodovitch brought photographs and text together.
The Polyglot Developer
SEPTEMBER 2, 2019
I’m pleased to announce that The Polyglot Developer has its own courses portal , a replacement to Udemy and Gumroad! The new portal, powered by Teachable , is a dedicated area for development courses relating to the material typically found on The Polyglot Developer blog. The portal will contain a variety of courses, some of which are free, and some of which are paid, but all of which are offering a premium learning experience.
The Morning Paper
SEPTEMBER 29, 2019
Small world with high risks: a study of security threats in the npm ecosystem Zimmermann et al., USENIX Security Symposium 2019. This is a fascinating study of the npm ecosystem, looking at the graph of maintainers and packages and its evolution over time. It’s packed with some great data, and also helps us quantify something we’ve probably all had an intuition for— the high risks involved in depending on a open and fast-moving ecosystem.
Sutter's Mill
SEPTEMBER 24, 2019
Yesterday, I received this question from a distinguished C++ expert who served on the ISO C++ committee for many years. The email poses a decades-old question that still has the classic roll-your-own answer in C++ Core Guidelines #C.130 , and basically asks whether we’ve made significant progress toward automating this pattern in modern C++ compared to what we had back in the 1990s and 2000s.
DZone
SEPTEMBER 25, 2019
What happens when you're out of memory? You may also like: Java Out of Memory Heap Analysis. Recently we experienced an interesting production problem. This application was running on multiple AWS EC2 instances behind Elastic Load Balancer. The application was running on a GNU/Linux OS, Java 8, Tomcat 8 application server. All of a sudden, one of the application instances became unresponsive.
Dynatrace
SEPTEMBER 4, 2019
Dynatrace news. Dynatrace Davis automatically analyzes abnormal situations within your IT infrastructure and reports all relevant impacts and root causes. Davis relies on a wide spectrum of information sources, including a transactional view of your services and applications and the monitoring of all events that are raised on individual nodes within your Smartscape topology map.
SQL Shack
SEPTEMBER 20, 2019
In this article, we will discuss a few very common questions that you may be asked during a SQL Server administrator or developer technical job interview. Q1: What is a SQL Server Execution Plan? SQL Server Execution Plan is a binary representation of the steps that are followed by the SQL Server Engine to execute the query. […].
The Polyglot Developer
SEPTEMBER 16, 2019
I’m pleased to announce that the 31st episode of The Polyglot Developer Podcast, featuring Adrienne Tacke and Alex Ziskind , has published to all of the popular podcast networks. This episode, titled Developer Education through Books, Video Courses, and Conferences , shares the personal stories of three developers when it comes to how they learn and expand their skill arsenal, as well as how they use their knowledge to produce content for other developers to consume in the format of books
The Morning Paper
SEPTEMBER 10, 2019
Procella: unifying serving and analytical data at YouTube Chattopadhyay et al., VLDB’19. Academic papers aren’t usually set to music, but if they were the chorus of Queen’s “I want it all (and I want it now…)” seems appropriate here. Anchored in the primary use case of supporting Google’s YouTube business, what we’re looking at here could well be the future of data processing at Google.
Rigor
SEPTEMBER 3, 2019
Reading time 11 min You’ve heard it before: it’s never too early to prepare for worst-case scenarios on Black Friday and Cyber Monday (or other high-load days) so that you can avoid or mitigate critical issues and site failures. And it’s an inescapable truth that if you don’t have holiday readiness plans in place well in advance, you may have just enough time to discover why your site is lagging or crashing but not enough time to address issues, improve the user experienc
DZone
SEPTEMBER 10, 2019
Testing the waters of Selenium Automation Testing. Selenium has been a pinnacle for open-source software in the industry of automated website testing. The automation testing framework is widely adopted by the testing community to help them in automating interactions with their web-application for desktops. I have been an automation tester for couple years now, and have been fondly towards Selenium ever since I knew what it’s capable of.
Dynatrace
SEPTEMBER 16, 2019
Dynatrace news. The path to Autonomous Cloud Management (ACM) and NoOps is a transformational journey that reaches all parts of an organization. It fundamentally changes how teams and tools work together with a common goal: deliver software faster, more frequently and with a higher degree of quality. If you want to read more about what ACM is and how it came to be, please check my other blog post where I talk about the concepts and Dynatrace’s own journey.
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